Understanding macroinvertebrate metacommunity organization using a nested study design across a mountainous river network

Metacommunity ecology highlights the importance of integrating simultaneously environmental filtering and spatial processes, such as mass effects and dispersal limitation, into investigation of community assembly. However, few studies to date have tried to examine mass effects and dispersal limitati...

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Autores principales:	Zhengfei Li, Jani Heino, Xiao Chen, Zhenyuan Liu, Xingliang Meng, Xiaoming Jiang, Yihao Ge, Juanjuan Chen, Zhicai Xie
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Environmental filtering Mass effects Dispersal limitation Macroinvertebrate Subtropical rivers Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/6fce8c09cf6743828b0060c0646f2864
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id	oai:doaj.org-article:6fce8c09cf6743828b0060c0646f2864
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spelling	oai:doaj.org-article:6fce8c09cf6743828b0060c0646f28642021-12-01T04:37:59ZUnderstanding macroinvertebrate metacommunity organization using a nested study design across a mountainous river network1470-160X10.1016/j.ecolind.2020.107188https://doaj.org/article/6fce8c09cf6743828b0060c0646f28642021-02-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20311274https://doaj.org/toc/1470-160XMetacommunity ecology highlights the importance of integrating simultaneously environmental filtering and spatial processes, such as mass effects and dispersal limitation, into investigation of community assembly. However, few studies to date have tried to examine mass effects and dispersal limitation as independent ecological mechanisms along with environmental filtering in shaping biological communities in river networks. We examined the relative importance of three factor groups, i.e., environmental variables, within-river spatial factors (indicative of mass effects) and basin identity (referring to dispersal limitation) on a macroinvertebrate metacommunity and nine trait-based deconstructed sub-metacommunities from seven subtropical rivers. We applied redundancy analysis and variance partitioning to reveal the pure and shared effects of the three groups of factors on community variation. Environmental filtering, mass effects and dispersal limitation were all significant mechanisms affecting variation in macroinvertebrate communities, but their relative importance depended on biological traits. Environmental filtering explained more of the variation in the whole metacommunity, tolerant taxa and macroinvertebrate groups with weak dispersal ability (i.e., aquatic dispersal, aerial passive dispersal and large body size). In contrast, mass effects accounted for more variation in the communities of intolerant taxa and macroinvertebrate groups with strong dispersal ability (i.e., aerial active dispersal mode and medium body size). Dispersal limitation was more influential for sub-communities of moderately tolerant taxa and large-sized taxa. Our study highlights that simultaneously accounting for different spatial processes and using a trait-based approach are essential to improve our understanding of community assembly in river networks.Zhengfei LiJani HeinoXiao ChenZhenyuan LiuXingliang MengXiaoming JiangYihao GeJuanjuan ChenZhicai XieElsevierarticleEnvironmental filteringMass effectsDispersal limitationMacroinvertebrateSubtropical riversEcologyQH540-549.5ENEcological Indicators, Vol 121, Iss , Pp 107188- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Environmental filtering Mass effects Dispersal limitation Macroinvertebrate Subtropical rivers Ecology QH540-549.5
spellingShingle	Environmental filtering Mass effects Dispersal limitation Macroinvertebrate Subtropical rivers Ecology QH540-549.5 Zhengfei Li Jani Heino Xiao Chen Zhenyuan Liu Xingliang Meng Xiaoming Jiang Yihao Ge Juanjuan Chen Zhicai Xie Understanding macroinvertebrate metacommunity organization using a nested study design across a mountainous river network
description	Metacommunity ecology highlights the importance of integrating simultaneously environmental filtering and spatial processes, such as mass effects and dispersal limitation, into investigation of community assembly. However, few studies to date have tried to examine mass effects and dispersal limitation as independent ecological mechanisms along with environmental filtering in shaping biological communities in river networks. We examined the relative importance of three factor groups, i.e., environmental variables, within-river spatial factors (indicative of mass effects) and basin identity (referring to dispersal limitation) on a macroinvertebrate metacommunity and nine trait-based deconstructed sub-metacommunities from seven subtropical rivers. We applied redundancy analysis and variance partitioning to reveal the pure and shared effects of the three groups of factors on community variation. Environmental filtering, mass effects and dispersal limitation were all significant mechanisms affecting variation in macroinvertebrate communities, but their relative importance depended on biological traits. Environmental filtering explained more of the variation in the whole metacommunity, tolerant taxa and macroinvertebrate groups with weak dispersal ability (i.e., aquatic dispersal, aerial passive dispersal and large body size). In contrast, mass effects accounted for more variation in the communities of intolerant taxa and macroinvertebrate groups with strong dispersal ability (i.e., aerial active dispersal mode and medium body size). Dispersal limitation was more influential for sub-communities of moderately tolerant taxa and large-sized taxa. Our study highlights that simultaneously accounting for different spatial processes and using a trait-based approach are essential to improve our understanding of community assembly in river networks.
format	article
author	Zhengfei Li Jani Heino Xiao Chen Zhenyuan Liu Xingliang Meng Xiaoming Jiang Yihao Ge Juanjuan Chen Zhicai Xie
author_facet	Zhengfei Li Jani Heino Xiao Chen Zhenyuan Liu Xingliang Meng Xiaoming Jiang Yihao Ge Juanjuan Chen Zhicai Xie
author_sort	Zhengfei Li
title	Understanding macroinvertebrate metacommunity organization using a nested study design across a mountainous river network
title_short	Understanding macroinvertebrate metacommunity organization using a nested study design across a mountainous river network
title_full	Understanding macroinvertebrate metacommunity organization using a nested study design across a mountainous river network
title_fullStr	Understanding macroinvertebrate metacommunity organization using a nested study design across a mountainous river network
title_full_unstemmed	Understanding macroinvertebrate metacommunity organization using a nested study design across a mountainous river network
title_sort	understanding macroinvertebrate metacommunity organization using a nested study design across a mountainous river network
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/6fce8c09cf6743828b0060c0646f2864
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Understanding macroinvertebrate metacommunity organization using a nested study design across a mountainous river network

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